Home / 12,075.68-18,115.20-5,503.52

Finding the Fourth Proportional to 12,075.68, 18,115.20 and 5,503.52

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Solution

The fourth proportional to 12,075.68, 18,115.20 and 5,503.52 is: 8,256.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,075.68 : 18,115.20 = 5,503.52 : x
  2. Step 2: Convert to fraction form
    12,075.68/18,115.20 = 5,503.52/x
  3. Step 3: Cross multiply
    12,075.68x = 18,115.20 × 5,503.52
  4. Step 4: Simplify right side
    12,075.68x = 99,697,365.50
  5. Step 5: Solve for x
    x = 99,697,365.50/12,075.68
  6. Step 6: Final answer
    x = 8,256.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.